Antilock brake system - what is ABS and how does it work?(中)

"Brake pedal hardened, a look on the bouncing feet, the car is still da da da ring ..."

New drivers encounter this situation will be worried: is not a car failure?

But if the old driver met, maybe will know ... stepped out of ABS.

Anti-lock system (antilock brake system) referred to as ABS. The role is in the car brake, the automatic control of the brake brake force size, so that the wheel is not locked, in the vehicle emergency braking, to provide a higher safety factor.

Before understanding what anti-lock, we first come to understand what is locked

Under normal circumstances, when the driver when the brakes, the tire will stop because of the work of the brake system, the car will stop.

But if the road in the wet road, the ground friction greatly reduced. After the brakes, the wheels stop turning, but the car will continue to slide forward, this situation can be understood as locked. In the case of wheel lock, rolling friction into a sliding friction, brake force greatly reduced. If the front wheel is locked, the vehicle will lose its ability to turn; if the rear wheel is first locked, the vehicle is prone to skidding, so that the direction of traffic becomes uncontrollable.

(ABS does not work in the case of the vehicle can not be completed effectively avoid)

ABS is an improved technology based on conventional braking devices. Its working principle is to rely on the wheels on the high sensitivity of the wheel speed sensor and the vehicle body speed sensor, through the computer control. In case of emergency braking, once a wheel is found to be locked, the computer immediately instructs the pressure regulator to cause the brake cylinder of the wheel to be reduced (reduced) and the wheel is turned.

ABS work process is actually locked - release - hold - release the cycle of the working process, so that the vehicle is always in the critical lock of the gap rolling state, effectively overcome the emergency brake when the deviation, Tail, to prevent the body out of control and so on.

I believe most people understand, ABS is the process of point brake. Then we can not use ABS, on their own feet to point the brake

ABS can play a brake about 20 times per second effect, the equivalent of one second, your feet in the brakes on the continuous step on 20. Normal people can not achieve this frequency.

For the principle of ABS, many lions know a little, but the vast majority of Lions do not know how to use ABS, in fact, ABS use is appropriate, directly related to traffic safety.

First, ABS work, the brake cylinder high-speed retracting action will make high-pressure brake fluid is frequently squeezed, resulting in a larger sound, the brake pedal will have jitter and the top foot phenomenon. Do not be troubled by this phenomenon when driving, in case of emergency use ABS brake to not hesitate to force the brakes directly in the end, can not relax.

Second, because the ABS emergency brake when the wheel is not locked, the front wheel is still a guiding role, the owner can brakes while driving the direction of emergency hedging.

Third, ABS system on the brake fluid requirements are very high, so add brake fluid should be strictly in accordance with the instructions on the use of the general ban on the different types of brake fluid doping.

4, ABS wheel sensors and ring gear are installed in the various wheels, so often keep the sensor probe and ring gear clean, to prevent mud, oil, especially magnetic substances attached to the surface, resulting in sensor failure or lose To the computer's signal error and affect the normal work of the ABS system.

5, equipped with ABS system vehicles should strictly follow the provisions of the tire pressure standard, while maintaining the balance of coaxial tire pressure, is strictly prohibited the use of different specifications of the tire.

Six, if the driving process in the ABS indicator light, indicating that the ABS system to stop the work, the general brake system can still work effectively. However, in order to restore the safety function of ABS, it is recommended to go to the service station as soon as possible to check(中)